Shadows flicker on avatar when I move my hands

This is a really odd issue I haven’t run into before. As you can see in the video the shadows on my avatar act strangely when I move my hands/gesture. I am using Hai for gesture-expressions which I haven’t had a problem with. It might be that this avatar has some toggle-eable props? I’m not sure.
[I can’t upload videos on here for some reason so here’s a youtube video]